Just in case you didn't know, you need two, a male and a female. [Well, you did say "from the start".]
Allow them to brumate. This means letting the temperatures decline during the winter and, more important, letting day-length decline by adjusting the length of time the basking light is on to match natural day length.
In the spring, they will take it from there. Just give the female easy access to a large container of barely-moist sand or potting soil.
